Abstract: The aim of this study was to investigate the effect of 8 weeks of functional resistance training on pain and proprioception of men with non-specific chronic low back pain. The research methodology according to experimental-control groups was pretest-posttest and the research design was quasi-experimental (interventional). Statistical population of the study were men aged 25-45 who came to the rehabilitation clinic due to chronic low back pain, then the subjects entered to the study after completing the written consent form of knowingly participation in research, the personal information questionnaire (including age, height, weight and the history of sport activities and injuries) and Roland-Morris questionnaire (earning a score above 4 in this questionnaire) and being eligible for the study, so that, the study subjects were divided into two groups with 10 subjects of control and functional resistance training. First, patients in both groups took the pretest and then experimental group subjects attended in training sessions for 8 weeks. But control group patients did not participate in any particular treatment program. After holding treatment sessions, all subjects participated in posttest and the respective indices were measured. Then in order to measure pre-test and post-test, amount of pain and proprioception, visual analogue questionnaire and handheld goniometer were used, respectively. Also, data in both descriptive and inferential statistics sections were analyzed in SPSS21 Software. After confirming normal distribution of data using K-S test, covariance analysis test ANCOVA and Sidak post hoc test were used at significance level of p = 0.05. Research findings showed significant improvement in pain and proprioception in the experimental group compared to the control group (p>0.05).